Manchester City have released a statement regarding a chant about Manchester United legend Sir Bobby Charlton.
The former England and United forward, who won the European Cup with United, World Cup with England, and the Ballon d'Or, died over the weekend.
A part of England's 1966 team, Charlton was United's second most appearance maker and second top scorer.
A statement from Man City, released on Sunday afternoon, reads: "Manchester City FC are extremely disappointed to have learned of reports of offensive chanting from a small number of individuals about Sir Bobby Charlton in some of the concourses of Etihad Stadium during half-time of yesterday's Premier League fixture against Brighton and Hove Albion.
"The club condemns these chants in the strongest terms and apologizes unreservedly to the family and friends of Sir Bobby, and to all those at Manchester United. On this day of all days, when the stadium stood to pay tribute to our own legend in Francis Lee, Manchester City supporters should understand and appreciate as keenly as anyone the need for respect in our game.
"Our security team are studying CCTV footage of the concourse areas. We are thankful to those who have already come forward to report this matter, and we continue to appeal for any information that can help us identify the individuals involved so that we can take the appropriate action to issue banning orders.
"Fans who see or hear abusive behavior are encouraged to text 0770 0151 894 to make our dedicated security team aware of what they have witnessed."
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